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yiguolei pushed a commit to branch dev-1.1.2
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commit 3fc0ba91dcfb5af771325a7c4ee79474a838ea9f
Author: starocean999 <40539150+starocean...@users.noreply.github.com>
AuthorDate: Tue Jul 26 10:20:11 2022 +0800
[bug]string pad functions should always be nullable (#11140)
* string pad functions should always be nullable
---
.../data/correctness/test_string_pad_function.out | 9 +++++
.../correctness/test_string_pad_function.groovy | 46 ++++++++++++++++++++++
2 files changed, 55 insertions(+)
diff --git a/regression-test/data/correctness/test_string_pad_function.out
b/regression-test/data/correctness/test_string_pad_function.out
new file mode 100644
index 0000000000..5fc247c7d7
--- /dev/null
+++ b/regression-test/data/correctness/test_string_pad_function.out
@@ -0,0 +1,9 @@
+-- This file is automatically generated. You should know what you did if you
want to edit this
+-- !select_lpad --
+\N
+10:00
+
+-- !select_rpad --
+\N
+10:00
+
diff --git a/regression-test/suites/correctness/test_string_pad_function.groovy
b/regression-test/suites/correctness/test_string_pad_function.groovy
new file mode 100644
index 0000000000..929a71dfa5
--- /dev/null
+++ b/regression-test/suites/correctness/test_string_pad_function.groovy
@@ -0,0 +1,46 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+suite("test_string_pad_function") {
+ sql """
+ drop table if exists table_pad;
+ """
+
+ sql """
+ create table table_pad (
+ a int not null,
+ b varchar(10) not null
+ )
+ ENGINE=OLAP
+ distributed by hash(a)
+ properties(
+ 'replication_num' = '1'
+ );
+ """
+
+ sql """
+ insert into table_pad values(1,'100000'), (2,'200000');
+ """
+
+ qt_select_lpad """
+ select CASE WHEN table_pad.a = 1 THEN CONCAT(LPAD(b, 2, 0), ':00') END
result from table_pad order by result;
+ """
+
+ qt_select_rpad """
+ select CASE WHEN table_pad.a = 1 THEN CONCAT(RPAD(b, 2, 0), ':00') END
result from table_pad order by result;
+ """
+}
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